Balance Sheet Accounts (Schedule of Intangible Assets) (Details) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Sep. 30, 2015	Jun. 30, 2015
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 117,258	$ 125,508
Accumulated Amortization	74,017	73,376
Net Carrying Amount	$ 43,241	$ 52,132
Developed technology
Finite-Lived Intangible Assets [Line Items]
Weighted Average Remaining Amortization Period	10 months 24 days	1 year 2 months 12 days
Gross Carrying Amount	$ 48,000	$ 48,000
Accumulated Amortization	32,486	28,194
Net Carrying Amount	$ 15,514	$ 19,806
Customer relationships
Finite-Lived Intangible Assets [Line Items]
Weighted Average Remaining Amortization Period	1 year 18 days	1 year 3 months 18 days
Gross Carrying Amount	$ 37,000	$ 37,000
Accumulated Amortization	23,639	20,556
Net Carrying Amount	$ 13,361	$ 16,444
Maintenance contracts
Finite-Lived Intangible Assets [Line Items]
Weighted Average Remaining Amortization Period	3 years 18 days	3 years 3 months 18 days
Gross Carrying Amount	$ 17,000	$ 17,000
Accumulated Amortization	6,517	5,667
Net Carrying Amount	$ 10,483	$ 11,333
Trademarks
Finite-Lived Intangible Assets [Line Items]
Weighted Average Remaining Amortization Period	1 year 18 days	1 year 3 months 18 days
Gross Carrying Amount	$ 2,500	$ 2,500
Accumulated Amortization	1,597	1,389
Net Carrying Amount	$ 903	$ 1,111
Order backlog
Finite-Lived Intangible Assets [Line Items]
Weighted Average Remaining Amortization Period	18 days	3 months 18 days
Gross Carrying Amount	$ 7,400	$ 7,400
Accumulated Amortization	7,292	6,967
Net Carrying Amount	$ 108	$ 433
License agreements
Finite-Lived Intangible Assets [Line Items]
Weighted Average Remaining Amortization Period	9 years 10 months 24 days	10 years 2 months 12 days
Gross Carrying Amount	$ 3,596	$ 10,924
Accumulated Amortization	1,392	8,620
Net Carrying Amount	$ 2,204	$ 2,304
Other intangibles
Finite-Lived Intangible Assets [Line Items]
Weighted Average Remaining Amortization Period	4 years 2 months 12 days	3 years 9 months 18 days
Gross Carrying Amount	$ 1,762	$ 2,684
Accumulated Amortization	1,094	1,983
Net Carrying Amount	$ 668	$ 701